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Finding the Fourth Proportional to 218,910.84, 301,910.10 and 151,036.08

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Solution

The fourth proportional to 218,910.84, 301,910.10 and 151,036.08 is: 208,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,910.84 : 301,910.10 = 151,036.08 : x
  2. Step 2: Convert to fraction form
    218,910.84/301,910.10 = 151,036.08/x
  3. Step 3: Cross multiply
    218,910.84x = 301,910.10 × 151,036.08
  4. Step 4: Simplify right side
    218,910.84x = 45,599,318,016.41
  5. Step 5: Solve for x
    x = 45,599,318,016.41/218,910.84
  6. Step 6: Final answer
    x = 208,300.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.